Cisco IOS Wide-Area Networking Configuration Guide - Free Books

Frame Relay Voice-Adaptive Traffic Shaping andFragmentationThe Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation feature helps ensure voice qualityby adjusting the rate of traffic and activating fragmentation on the basis of the presence of voice on thepermanent virtual circuit (PVC). Frame Relay voice-adaptive traffic shaping enables a PVC to adjust therate of traffic if packets are detected in the priority queue or if H.323 call setup signaling packets aredetected. Frame Relay voice-adaptive fragmentation allows fragmentation to be activated whenpriority-queue or H.323 signaling packets are detected. When priority-queue traffic and signalingpackets are not present, Frame Relay voice-adaptive fragmentation allows fragmentation to bedeactivated.Feature Specifications for Frame Relay Voice-Adaptive Traffic Shaping and FragmentationFeature HistoryRelease12.2(15)TModificationThis feature was introduced.Supported PlatformsCisco 1700 series, Cisco 2600 series, Cisco 3600 series, Cisco 3700 series, Cisco 4500, Cisco 7200series, Cisco 7400 series, Cisco 7500 series (without Versatile Interface Processor.)Finding Support Information for Platforms and Cisco IOS Software ImagesUse Cisco Feature Navigator to find information about platform support and Cisco IOS software imagesupport. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account onCisco.com. If you do not have an account or have forgotten your username or password, click Cancel atthe login dialog box and follow the instructions that appear.Contents• Prerequisites for Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation, page 2• Restrictions for Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation, page 2• Information About Frame Relay Voice-Adaptive Traffic Shaping and Fragmentation, page 2Americas Headquarters:Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA© 2007 Cisco Systems, Inc. All rights reserved.